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Hrozmarly needs to evaluate the following expression y^2-x^2 when y=9 and x=2. Her answer should be?

i am in 6 grade

User Vagoberto
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1 Answer

8 votes

Answer:

Explanation:

y^2 -x^2=

y^2=9^2=81

x^2=2^2=4

81-4=77

User Hjgraca
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